PIXHAWK Autopilot
Users and Projects
The most prominent adopting project is APM:Plane and APM:Copter [ http://ardupilot.com/ ], which use the PX4 Pixhawk autopilot as their current-generation hardware. In this setup the full PX4 middleware runs on Pixhawk, and the APM software is executed as app interfacing to it.
Copyright 2014 http://pixhawk.org/